Upgrade Mina to 2.0.4
Merge pull request #32 from rnc/BR01-MINA

Upgrade Mina to 2.0.4
upgrade some plugins version.
Merge pull request #33 from cvgaviao/update-plugins-version

upgrade some plugins version.
Add version information for Work Items Editor
updating eclipse bpmn2 version
Update Errai to 2.3.0.Final for Beta2